Yes, I don't see what the problem is.
I think you have misunderstood the nature of this site, May123. This is not a place where you can post a command like "Insert the definite article where necessary and give reasons" and have your self-study exercises done for you.
The Grammar Exchange is a site where you can pose topical questions about the grammar of English and have those questions discussed. The questions should be specific and related to specific examples.
If an exercise set is devoted to article usage, this does not automatically render the exercise set suitable for being posted at this site. You could, however, post a question about a case of article usage you are having trouble with.
If you want help here with a particular homework exercise, what you can do is post the exercise (citing the source), politely request our help with it, state what you believe the correct answer to be, and give your reasoning.
Should you take this approach, the exercises you start threads about should be appropriately titled, related to the grammatical topic. Please keep in mind that a member may not start more than four threads a day.
We'll be happy to provide you with help if you use the website appropriately.